Steam-boiler.



Patented Oct. 28 I902.

C. DI'EDREACH.

STEAM B0lLER. (Applicatizion filed Jan. 15, 1902.)

(No Model.)

THE NORRIS Firms co, EHQTOJLITHQ. wAsHms'roN. 04 c.

UNITED STATES PATENT OFFICE.

CHARLES DIEDREAOH, OF STOCKTON, CALIFORNIA.

STEAM-BOILER.

' SPECIFICATION forming part of Letters Patent No. 712,269, datedOctober 90 Application filed January 15, 1902. Serial No- 89,932. (Nomodel.)

T0 at whom it may concern.-

Be it known that I, CHARLES DIEDREACH, a citizen of the United States,residing at Stockton, in the county of San Joaquin, State of California,have invented certain new and useful Improvements in Steam-Boilers; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in steam-boilers, the object of theinvention being to provide for the protection of seams, patches, andrivets on a steam-boiler subjected to the enormous heat caused by oilbeing burned in such furnaces, the object of my invention being toprovide sections of firebrick fastened to a barot' iron with studs,-such bar of iron being fastened to the boiler by intermediate studs. i

A further object is to construct the above protection so that thefire-bricks can be taken out separately, and replaced by new oneswhenever desired and at a nominal expense.

With these objects in view the invention consists of certain novelfeatures of construction and combination and arrangements of parts, asherein set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1; is a side elevation, partlybroken away, showing the interior of a furnace and boiler provided withmy improved protection devices. Fig. 2 is an end view of cross-sectionof the same. Fig. 3 is a detailed cross-sectional view of a joint of theboiler, showing the manner of attaching the fire-bricks over a seam.Fig. iis a longitudinal sectional view. of the same. Fig. 5 is adetached view in section.

It may be here stated that my invention is applicable to many kinds ofboilers; but for the sake of convenience and illustration I willdescribe it in connection with a simple form of boiler.

1 represents an ordinary circular boiler, of which 2 is the fire-box.

3 is a seam where the sections of the boilerplates are attached togetherby the rivets 4.

5 is a bar or plate of iron running parallel with the seam 3 and havingstuds 9 inserted in the boiler at intervals to hold said plate 5 inposition.

6 represents sections of fire-brick covering each rivet 4 and the seam 3and fastened by a stud 7 to the plate 5, each being provided withcountersinks 8 to receive the nuts 10 of the studs 7.

The fire-bricks 6 are provided with a channel 11 in a continuous linefitting over the seam 3.

The duration of the existence of fire-bricks in locomotive-boilers isfrom fifty to eighty days.

The sections of fire-brick in the manner of attaching them as- I haveabovedescribed permit of their being taken out separately and replacedby new ones without any inconvenience to the remaining sections, thussecuring a decided advantage by the use of my invention.

Many slight changes might be made in the details of construction of myinvention without departingfrom the spirit thereof or limiting itsscope. myself to the precise details of'construction herein set forth;but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a steam-boiler the combination with the boiler 1 of the plate 5,attached to said boiler by the studs 9, the sections of fire- .bricks 6,attached to said plate 5, by the studs 7, the fire-bricks 6, beingprovided with the countersinks 8, for the reception of the nuts of thestuds 7 and 9, substantially as set forth.

2. In a steam-boiler a seam and rivet protection consisting of a plateof iron parallel with the rivets and seam of the boiler within theboiler-furnace, such plate being fastened to the boiler by intermediatestuds, firebricks fastened to the plate by studs, such fire-bricks beingprovided with countersinks to receive the nuts of the studssubstantially as set forth.

3. In a steam-boiler, a seam and rivet protection comprising a metallicplate attached to the boiler adjacent to the seam, and firebricksfastened on said plate and resting over Hence I do not wish to restrict1 the seam and rivets and having countersinks also with the channels 11,such channels comin their inner sides receiving the outer endsprehending and covering the seam 3, of the of the rivets. boiler.

4c. In a steam-boiler the combination sub- In testimony whereof I affixmy signature 5 stantially as described of the plate 5 suitably inpresence of two witnesses.

attached by studs to the boiler-surface par- CHARLES DIEDREACIL allelwith the seam 3, and having attached thereto by suitable studs thefire-bricks 6, Witnesses:

provided with the countersinks 8, for the re- JOSHUA B. WEBSTER, 1oception of the nuts of the studs and provided OORA SPERRY.

